第一节 短文改错 此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正： 多一个词：把多余的词用横线(—)划掉，在该行右边横线上写出该词，并也用横线划掉。 缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。 错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。 注意：原行没有错的不要改。Naturalists have long known that the apes, our nearest relative in the animal 76. ______kingdom, communicate with one and another through gestures, sounds and facial 77. ______expressions. But it was always thought that only human beings can use words 78. ______and sentences. In the 1960s, however, researchers set themselves the task of reach 79. ______chimpanzees to communicate with humans. At first the scientists tried make them 80. ______to speak. But no chimp ever managed to acquire a vocabulary of more than four words 81. ______and even these were spoken with great difficult. The breakthrough came when two 82. ______scientists from the University of Nevada decided to try America Sign Language, 83. ______system of gestures used by deaf people. After four years, they had taught their first 84. ______chimpanzees to use 132 signs correctly to communicate their wants and needs. 85. ______